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Colourless salt (A) + dil. H(2)SO(4) " o...

Colourless salt (A) + dil. `H_(2)SO_(4) " or" CH_(3)CO OH+KI to `blue colour with starch. (A) can be

A

`K_(2)SO_(3)`

B

`Na_(2)CO_(3)`

C

`NH_(4)NO_(2)`

D

`NH_(4)Cl`

Text Solution

Verified by Experts

The correct Answer is:
C
`2NO_(2)^(-) +3I^(-) +4CH_(3)CO OH to I_(3)^(-) +2NO uarr + 4CH_(3)CO O^(-) + 2H_(2)O`.
`I_(3)^(-) + " starch" to `blue colouration.
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RESONANCE-QUALITATIVE ANALYSIS (ANION)-Additional Problems for Self Practice (APSP)
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